Coverage for /usr/lib/python3/dist-packages/fontTools/misc/timeTools.py: 41%

1"""fontTools.misc.timeTools.py -- tools for working with OpenType timestamps. 

2""" 

3 

4import os 

5import time 

6from datetime import datetime, timezone 

7import calendar 

8 

9 

10epoch_diff = calendar.timegm((1904, 1, 1, 0, 0, 0, 0, 0, 0)) 

11 

12DAYNAMES = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"] 

13MONTHNAMES = [ 

14 None, 

15 "Jan", 

16 "Feb", 

17 "Mar", 

18 "Apr", 

19 "May", 

20 "Jun", 

21 "Jul", 

22 "Aug", 

23 "Sep", 

24 "Oct", 

25 "Nov", 

26 "Dec", 

27] 

28 

29 

30def asctime(t=None): 

31 """ 

32 Convert a tuple or struct_time representing a time as returned by gmtime() 

33 or localtime() to a 24-character string of the following form: 

34 

35 >>> asctime(time.gmtime(0)) 

36 'Thu Jan 1 00:00:00 1970' 

37 

38 If t is not provided, the current time as returned by localtime() is used. 

39 Locale information is not used by asctime(). 

40 

41 This is meant to normalise the output of the built-in time.asctime() across 

42 different platforms and Python versions. 

43 In Python 3.x, the day of the month is right-justified, whereas on Windows 

44 Python 2.7 it is padded with zeros. 

45 

46 See https://github.com/fonttools/fonttools/issues/455 

47 """ 

48 if t is None: 

49 t = time.localtime() 

50 s = "%s %s %2s %s" % ( 

51 DAYNAMES[t.tm_wday], 

52 MONTHNAMES[t.tm_mon], 

53 t.tm_mday, 

54 time.strftime("%H:%M:%S %Y", t), 

55 ) 

56 return s 

57 

58 

59def timestampToString(value): 

60 return asctime(time.gmtime(max(0, value + epoch_diff))) 

61 

62 

63def timestampFromString(value): 

64 wkday, mnth = value[:7].split() 

65 t = datetime.strptime(value[7:], " %d %H:%M:%S %Y") 

66 t = t.replace(month=MONTHNAMES.index(mnth), tzinfo=timezone.utc) 

67 wkday_idx = DAYNAMES.index(wkday) 

68 assert t.weekday() == wkday_idx, '"' + value + '" has inconsistent weekday' 

69 return int(t.timestamp()) - epoch_diff 

70 

71 

72def timestampNow(): 

73 # https://reproducible-builds.org/specs/source-date-epoch/ 

74 source_date_epoch = os.environ.get("SOURCE_DATE_EPOCH") 

75 if source_date_epoch is not None: 

76 return int(source_date_epoch) - epoch_diff 

77 return int(time.time() - epoch_diff) 

78 

79 

80def timestampSinceEpoch(value): 

81 return int(value - epoch_diff) 

82 

83 

84if __name__ == "__main__": 

85 import sys 

86 import doctest 

87 

88 sys.exit(doctest.testmod().failed)